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Note 6 - Other Assets
9 Months Ended
Dec. 31, 2015
Notes to Financial Statements  
Other Assets Disclosure [Text Block]
6. Other Assets
 
Other assets consist of the following (in thousands):
 
 
 
December 31,
 
 
March 31,
 
 
 
2015
 
 
2015
 
 
 
(unaudited)
 
Marketable equity securities
  $ 1,785     $ 1,737  
Auction rate preferred securities
    350       350  
Long-term equity investments
    10,854       11,041  
Other items
    727       576  
Total
  $ 13,716     $ 13,704